When you turn it on: is it before the platter is up to speed and stops as soon as it is speed stable?
Then "IF" you 'help' the platter: that is: start the platter spinning with your hand, just before turning on motor. Does it make noise then?
Then "IF" you 'help' the platter: that is: start the platter spinning with your hand, just before turning on motor. Does it make noise then?

